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dc.creatorElizondo Sancho, Mariana
dc.creatorRodríguez Arriatti, Yehudi Nafisa
dc.creatorAlbertazzi Castro, Federico José
dc.creatorBonilla Salazar, Adrián
dc.creatorArauz Naranjo, Daniel
dc.creatorArauz Vargas, Randall
dc.creatorAreano, Elisa
dc.creatorÁvalos Castillo, Cristopher
dc.creatorBrenes, Óscar
dc.creatorChávez Calderón, Elpis Joan
dc.creatorDominici Arosemena, Arturo
dc.creatorEspinoza Mendiola, Mario
dc.creatorHeidemeyer, Maike
dc.creatorTavares, Rafael
dc.creatorHernández, Sebastián
dc.date.accessioned2022-09-30T17:49:51Z
dc.date.available2022-09-30T17:49:51Z
dc.date.issued2022-09
dc.identifier.urihttps://hdl.handle.net/10669/87434
dc.description.abstractDefining demographically independent units and understanding gene flow between them is essential for managing and conserving exploited populations. The scalloped hammerhead shark, Sphyrna lewini , is a coastal semi-oceanic species found worldwide in tropical and subtropical waters. Pregnant females give birth in shallow coastal estuarine habitats that serve as nursery grounds for neonates and small juveniles, and adults move offshore and become highly migratory. We evaluated the population structure and connectivity of S. lewini in coastal areas across the Eastern Tropical Pacific (ETP) using both sequences of the mitochondrial DNA control region (mtCR) and nuclear-encoded microsatellite loci. The mtCR defined two genetically discrete geographic groups: the Mexican Pacific and the central-southern Eastern Tropical Pacific (Guatemala, Costa Rica, Panamá, and Colombia). Overall, the mtCR data showed low levels of haplotype diversity ranged from 0.000 to 0.608, while nucleotide diversity ranged from 0.000 to 0.0015. A more fine-grade population structure analysis was detected using microsatellite loci where Guatemala, Costa Rica, and Panamá differed significantly. Genetic diversity analysis with nuclear markers revealed an observed heterozygosity ranging from 0.68 to 0.71 and an allelic richness from 5.89 to 7.00. Relatedness analysis revealed that individuals within nursery areas were more closely related than expected by chance, suggesting that S. lewini may exhibit reproductive philopatric behaviour within the ETP. Findings of at least two different management units, and evidence of philopatric behaviour call for intensive conservation actions for this critically endangered species in the ETP.es_ES
dc.description.sponsorshipUniversidad de Costa Rica/[801-B6-214]/UCR/Costa Ricaes_ES
dc.description.sponsorshipNational Secretary of Science and Technology/[FID-156]/SENACYT/Ecuadores_ES
dc.description.sponsorshipThe Phoenix Zoo/[no.33297]//Estados Unidoses_ES
dc.description.sponsorshipPADI Foundation/[no.32809]//Estados Unidoses_ES
dc.description.sponsorshipRufford Foundation/[no.22366-1]//Reino Unidoses_ES
dc.description.sponsorshipWaitt Foundation/[no.33297]//Estados Unidoses_ES
dc.description.sponsorshipFundación Reserva Ojochal/[]//Costa Ricaes_ES
dc.description.sponsorshipThe Whitley Fund for Nature/[]/WFN/Reino Unidoes_ES
dc.description.sponsorshipSandler Family Foundation/[]//Estados Unidoses_ES
dc.description.sponsorshipOsa Conservation/[]//Costa Ricaes_ES
dc.language.isoenges_ES
dc.sourcePLOS ONEes_ES
dc.subjectHammerhead sharkes_ES
dc.subjectmicrosatelliteses_ES
dc.subjectmitochondrial DNAes_ES
dc.subjectendangered specieses_ES
dc.subjectPopulation geneticses_ES
dc.subjectPopulation geneticses_ES
dc.subjectPhilopatryes_ES
dc.subjectPhilopatryes_ES
dc.subjectGenetic connectivityes_ES
dc.titlePopulation structure and genetic connectivity 1 of the scalloped hammerhead shark (Sphyrna lewini) across nursery grounds from the Eastern Tropical Pacific: implications for management and conservationes_ES
dc.title.alternativeGenetic connectivity of an endangered shark across nursery areas from the Eastern Tropical Pacifices_ES
dc.typeartículo científicoes_ES
dc.description.procedenceUCR::Vicerrectoría de Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de Biologíaes_ES
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigación en Biología Celular y Molecular (CIBCM)es_ES
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigación en Ciencias del Mar y Limnología (CIMAR)es_ES
dc.identifier.codproyecto801-B6-214


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